DOI: 10.1016/j.atmosres.2018.07.020
Scopus记录号: 2-s2.0-85050762545
论文题名: WRF-based assessment of the Great Lakes’ impact on cold season synoptic cyclones
作者: Xiao C. ; Lofgren B.M. ; Wang J.
刊名: Atmospheric Research
ISSN: 1698095
出版年: 2018
卷: 214 起始页码: 189
结束页码: 203
语种: 英语
英文关键词: Extratropical cyclone
; Great Lakes
; Lake effect
; Weather Research and Forecasting (WRF) model
Scopus关键词: Atmospheric temperature
; Heat flux
; Sea level
; Storms
; Weather forecasting
; Atmospheric conditions
; Extratropical cyclones
; Great lakes
; Lake effects
; Land surface modeling
; Synoptic scale interaction
; Vertical heat fluxes
; Weather research and forecasting models
; Lakes
; cyclone
; extratropical cyclone
; numerical model
; synoptic meteorology
; temperature gradient
; weather forecasting
; Great Lakes [North America]
英文摘要: Synoptic events in December are studied with regard to the Great Lakes’ influence on extratropical cyclones using the Weather Research and Forecasting (WRF) model. Here, four selected events are arranged into two pairs of comparisons: strong events (2006, 2009) versus weak events (2008, 2013); traversing events (2008, 2009) versus bypassing events (2006, 2013). For each case, the land surface model in WRF is initialized with two different configurations: the control run with real land coverage and the no-lake run in which the lakes are replaced by land. The control simulation shows that the WRF model exhibits a good performance in reproducing precipitation, sea-level pressure and air temperature. Comparisons between control and no-lake runs among these cases indicate that the lake-air temperature gradient, inducing vertical heat flux, is most prominent in the weak bypassing event (case 2013), while lake-land roughness contrast contributes to the low-level moisture convergence. The Great Lakes’ impact generally strengthens the cyclonic system near the surface but is sensitive to the background flow. This effect becomes much more significant for the development of cyclones with colder atmospheric conditions, suggesting that the meso-to-synoptic scale interaction should be taken into account when considering the Great Lakes’ influence. © 2018 Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/108741
Appears in Collections: 影响、适应和脆弱性 气候变化事实与影响
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作者单位: Cooperative Institute for Great Lakes Research (CIGLR), University of Michigan, Ann Arbor, MI, United States; NOAA Great Lakes Environmental Research Laboratory, Ann Arbor, MI, United States
Recommended Citation:
Xiao C.,Lofgren B.M.,Wang J.. WRF-based assessment of the Great Lakes’ impact on cold season synoptic cyclones[J]. Atmospheric Research,2018-01-01,214